Círculo quintas índice 0-11

índice: 0=C, 1=G, 2=D, 3=A, 4=E, 5=B, 6=F#, 7=C#, 8=G#, 9=D#, 10=A#, 11=F.
Created by
Renato Passos, Eng. de Software
Reviewed by
Renato Passos, Eng. de Software

Last updated: Apr 18, 2026

Índice 0-11
1

Formula

0=C … 11=F

About this calculator

The Circle of Fifths is an essential tool in music that organizes notes in a circular pattern. It is used to understand the relationships between notes and their respective key signatures. In this index, we have a numerical representation from 0 to 11, where each number corresponds to a musical note. For example, index 0 corresponds to the note C, 1 to the note G, and so on.

The functioning of the Circle of Fifths is based on the formula of perfect fifth intervals. Starting from an initial note, we move five semitones to the right to get the next note in a clockwise direction. In a counterclockwise direction, the movement is in diminished fifths. This pattern helps musicians easily find relative major and minor notes, as well as key signatures.

This index is particularly useful in situations where it is necessary to quickly identify notes and their relationships. For example, when composing a song, a musician can use the Circle of Fifths to find chords that sound good together or to modulate to a new key. It is also a valuable tool for music students seeking to understand music theory in a practical way.

When using the Circle of Fifths, it is important to be mindful of the direction of movement (clockwise or counterclockwise) and to understand how notes relate to each other. It is also essential to remember that there are variations and different modes, which can affect the practical application of the Circle of Fifths in different musical contexts.

Frequently asked questions

How does the Circle of Fifths work?

The Circle of Fifths works based on the formula of perfect fifth intervals. Starting from an initial note, we move five semitones to the right to get the next note in a clockwise direction.

What is the purpose of the 0 to 11 index?

The 0 to 11 index represents the 12 musical notes. Index 0 corresponds to the note C, 1 to the note G, and so on.

How to use the Circle of Fifths in music composition?

When composing a song, the Circle of Fifths can be used to find chords that sound good together or to modulate to a new key.

What precautions should I take when using the Circle of Fifths?

It is important to be mindful of the direction of movement (clockwise or counterclockwise) and to understand how notes relate to each other.

Is the Circle of Fifths useful for music beginners?

Yes, the Circle of Fifths is a valuable tool for music students seeking to understand music theory in a practical way.

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